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This commit is contained in:
KubaPro010
2024-12-31 16:10:21 +01:00
parent c96fe78618
commit 1868cd98ca
16 changed files with 199 additions and 279 deletions
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29
lib/oscillator.c Normal file
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#include "oscillator.h"
void init_oscillator(Oscillator *osc, float frequency, float sample_rate) {
osc->phase = 0.0f;
osc->phase_increment = (M_2PI * frequency) / sample_rate;
osc->sample_rate = sample_rate;
}
void change_oscillator_frequency(Oscillator *osc, float frequency) {
osc->phase_increment = (M_2PI * frequency) / osc->sample_rate;
}
float get_oscillator_sin_sample(Oscillator *osc) {
float sample = sinf(osc->phase);
osc->phase += osc->phase_increment;
if (osc->phase >= M_2PI) {
osc->phase -= M_2PI;
}
return sample;
}
float get_oscillator_cos_sample(Oscillator *osc) {
float sample = cosf(osc->phase);
osc->phase += osc->phase_increment;
if (osc->phase >= M_2PI) {
osc->phase -= M_2PI;
}
return sample;
}